Your network contains an Active Directory domain. All domain controllers run Windows Server 2008 R2. Client computers run either Windows XP Service Pack 3 （SP3） or Windows Vista. You need to ensure that all client computers can apply Group Policy preferences. What should you do（） ["Upgrade all Windows XP client computers to Windows 7.","Create a central store that contains the Group Policy ADMX files.","Install the Group Policy client-side extensions （CSEs） on all client computers.","Upgrade all Windows Vista client computers to Windows Vista Service Pack 2 （SP2）."]
成本控制的动态资料包括进度报告和（） ["合同文件","成本计划","工程变更与索赔资料","成本控制报告"]
网站策划书内容不包括（） ["建站前的市场分析","建站目的及功能定位","数据库\/文件设计","确定网站技术解决方案"]
煤气设施的泄爆阀安装在（）位置。 ["易发生爆炸的位置","煤气管道的末段","煤气管道的最高点"]
在逻辑运算中有Y＝A＋B，则表示逻辑变量A和B进行（）。 ["与运算","或运算","非运算","与非运算"]
国际化经营的特点是什么？
